CN116166587A

CN116166587A - Data transmission method and data transmission system

Info

Publication number: CN116166587A
Application number: CN202111412776.0A
Authority: CN
Inventors: 萧丞渊; 刘松高; 许志宇; 庄威宏
Original assignee: Realtek Semiconductor Corp
Current assignee: Realtek Semiconductor Corp
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-05-26

Abstract

A data transmission method for use in a data transmission system comprising a receiving interface and a plurality of transmitting interfaces, the data transmission method comprising: (a) Receiving a first transmission message transmitted by a source device by using the receiving interface, wherein the first transmission message comprises information of a plurality of data groups corresponding to at least two of the transmission interfaces; and (b) according to the first transmission information, enabling the transmission interfaces to alternately transmit a part of the data group corresponding to the transmission interfaces to a corresponding target device until all the data groups are transmitted.

Description

Data transmission method and data transmission system

Technical Field

The present invention relates to a data transmission method and a data transmission system, and more particularly, to a data transmission method and a data transmission system capable of alternately transmitting data to a plurality of target devices in a preferred order.

Background

With the development of electronic technology, the transceiver interface becomes more and more diversified and the speed becomes faster and faster. Therefore, a technique of switching to the high-speed transmission/reception interface is often used. For example, USB (universal serial bus ) to PCIE (peripheral component interconnect express, high speed serial computer expansion bus standard), USB to SATA (Serial Advanced Technology Attachment ), and the like.

In order to make these high-speed transceiving interfaces smooth in transmitting instructions, an instruction conversion system is usually established that is compatible with and converts two different transceiving interfaces. Such instruction conversion systems are often faced with situations where data from one transceiver interface is to be transferred to multiple transceiver interfaces. However, existing instruction conversion systems often lack suitable data transfer mechanisms.

Disclosure of Invention

It is therefore an object of the present invention to provide a data transmission method capable of alternately transmitting data to a plurality of target devices in a preferable order.

Another object of the present invention is to provide a data transmission system that can alternately transmit data to a plurality of target devices in a preferable order.

An embodiment of the present invention provides a data transmission method, for use in a data transmission system including a receiving interface and a plurality of transmitting interfaces, including: (a) Receiving a first transmission message transmitted by a source device by using the receiving interface, wherein the first transmission message comprises information of a plurality of data groups corresponding to at least two of the transmission interfaces; and (b) according to the first transmission information, enabling the transmission interfaces to alternately transmit a part of the data group corresponding to the transmission interfaces to a corresponding target device until all the data groups are transmitted.

Another embodiment of the present invention provides a data transmission system, including: a receiving interface; a plurality of transmission interfaces; and a controller, wherein the controller controls the receiving interface to: (a) Receiving a first transmission message transmitted by a source device by using the receiving interface, wherein the first transmission message comprises information of a plurality of data groups corresponding to at least two of the transmission interfaces; and (b) according to the first transmission information, enabling the transmission interfaces to alternately transmit a part of the data group corresponding to the transmission interfaces to a corresponding target device until all the data groups are transmitted.

According to the foregoing embodiments, when different transmission interfaces have data to be transmitted at the same time, there may be an appropriate ordering mechanism.

Drawings

FIG. 1 illustrates an instruction conversion system according to an embodiment of the present invention.

Fig. 2 shows a data transmission system according to an embodiment of the invention.

Fig. 3 to 6 show schematic diagrams of the actions of a data transmission system according to different embodiments of the invention.

Fig. 7 illustrates a data transmission method according to an embodiment of the present invention.

Symbol description

100. Instruction conversion system

200. Data transmission system

CR1, CRa, CRb controller

DV1 first device

DV2 second device

RI receiving interface

SUD source device

TD1 first target device

TD2 second target device

TD3 third target device

TI1 first transmission interface

TI2 second transmission interface

TI3 third transmission interface

TRI1 first transmitting and receiving interface

TRI2 second transmitting and receiving interface

TRia and TRIb transmitting and receiving interface

Detailed Description

In the following, various embodiments of the present invention will be described, and it should be noted that the elements of each embodiment may be implemented in hardware (e.g., a device or a circuit) or firmware (e.g., at least one program written in a microprocessor). Furthermore, the terms "first," "second," and the like in the following description are used merely to define various elements, parameters, data, signals, or steps. And are not intended to limit the order in which they are presented.

FIG. 1 illustrates a block diagram of an instruction conversion system 100 according to an embodiment of the present invention. As shown in fig. 1, the instruction converting system 100 includes a first transceiver interface TRI1, a second transceiver interface TRI2, and a controller CR1. The first transceiver interface TRI1 is configured to receive an instruction from the first device DV1 and transmit the instruction to the second transceiver interface TRI2. The second transceiver interface TRI2 is configured to transmit the received command to the second device DV2, receive a reply from the second device DV2, and transmit the reply to the first transceiver interface TRI1. The first transceiver interface TRI1 transmits the reply to the first device DV1. The first device DV1 and the second device DV2 may include controllers CRa and CRb, respectively, and may also include transceiving interfaces trim and trim, respectively. The first transceiving Interface TRI1 may be referred to as a Direct Interface (Direct Interface), and the second transceiving Interface TRI2 may be referred to as a Non-Direct Interface (indirect Interface). It is also noted that instruction conversion system 100 may include more than one indirect interface. The first device DV1 and the second device DV2 may respectively follow different specifications, and the first transceiving interface TRI1 and the second transceiving interface TRI2 may respectively follow different specifications. The device for receiving data through different transceiving interfaces can also follow different specifications, but the device is required to correspond to the transceiving interfaces.

Fig. 2 shows a data transmission system 200 according to an embodiment of the invention. As shown in fig. 2, the data transmission system 200 includes a controller CR1, a receiving interface RI, and a plurality of transmission interfaces. In the embodiment of fig. 2, the data transmission system 200 includes 3 transmission interfaces: the first transmission interface TI1, the second transmission interface TI2 and the third transmission interface TI3, but the data transmission system of the present invention may include other numbers of transmission interfaces. The receiving interface RI is configured to receive data and related information from the source device SUD. The first transmission interface TI1, the second transmission interface TI2 and the third transmission interface TI3 are configured to transmit data to a first target device TD1, a second target device TD2 and a third target device TD3, respectively.

The embodiment of fig. 2 may be implemented by the embodiment of fig. 1. In detail, the source device SUD of fig. 2 may be the first device DV1 shown in fig. 1, the controller CR1 of fig. 2 may be the controller CR1 of fig. 1, and the receiving interface RI of fig. 2 may be the first transmitting/receiving interface TRI1 shown in fig. 1. The first transmission interface TI1, the second transmission interface TI2, and the third transmission interface TI3 of fig. 2 may correspond to different indirect interfaces in fig. 1. It should be noted that the data transmission system provided by the present invention is not limited to be implemented by the embodiment shown in fig. 1.

Referring back to fig. 2, in the embodiment of fig. 2, a first transmission information DI1 transmitted by the source device SUD is received by the receiving interface RI. The first transmission information DI1 includes information of a plurality of data groups corresponding to at least two of the transmission interfaces. For example, the first transmission information DI1 can inform the data transmission system 200 that there are two data groups (or two data) to be transmitted simultaneously: the first data group A1, a 2..the second data group B1, B2..the first data group A1, a 2..the first transmission interface TI1 and the second data group B1, B2..the second transmission interface TI2. The controller CR1 can make the transmission interface in the data transmission system 200 alternately transmit a portion of the corresponding data group to a corresponding target device according to the first transmission information until all the data groups are transmitted. In one embodiment, the controller CR1 makes the transmission interfaces in the data transmission system 200 alternately and equally transmit a portion of the corresponding data group to a corresponding target device. In one embodiment, which data group is to be transmitted first may be determined by the sequence of the data groups received by the receiving interface RI, or may be notified by the source device SUD to the data transmission system 200 which data group is to be transmitted first.

Fig. 3 to 6 show schematic diagrams of the actions of a data transmission system according to different embodiments of the invention. It should be noted that these examples are merely examples and are not intended to limit the scope of the present invention to these actions. In the embodiment of fig. 3, the data transmission system includes the first transmission interface TI1 and the second transmission interface TI2 shown in fig. 2, and no transmission interface other than the first transmission interface TI1 and the second transmission interface TI2 is used to transmit data. In such an embodiment, according to the first transmission information DI1, first data (e.g., A1) of a first portion of a first data group A1, A2, … … of the data groups is transmitted to a first target device TD1 through the first transmission interface TI1, then second data (e.g., B1) of a first portion of a second data group B1, B2, … … of the data groups is transmitted to a second target device TD2 through the second transmission interface TI2, and then first data (e.g., A2) of a second portion of the first data group A1, A2, … … is transmitted to the first target device TD1 through the first transmission interface TI 1. In more detail, no other data is included between the first data (e.g., A1) of the first portion and the second data (e.g., B1) of the first portion, and no other data is included between the second data (e.g., B1) of the first portion and the first data (e.g., A2) of the second portion. That is, in the embodiment of fig. 3, the data to be transmitted by different transmission interfaces are transmitted alternately and equally.

In the embodiment of fig. 4, the data transmission system includes the first transmission interface TI1, the second transmission interface TI2 and the third transmission interface TI3 shown in fig. 2, and the transmission interfaces outside the first transmission interface TI1, the second transmission interface TI2 and the third transmission interface TI3 are not used for transmitting data. In such an embodiment, according to the first transmission information DI1, the first data (e.g. A1) of the first portion of the first data group A1, A2 … … is transmitted to the first target device TD1 through the first transmission interface TI1, then the second data (e.g. B1) of the first portion of the second data group B1, B2 … … is transmitted to the second target device TD2 through the second transmission interface TI2, then the third data (e.g. C1) of the first portion of the third data group C1, C2 … … is transmitted to the third target device TD3 through the third transmission interface TI3, and then the first data (e.g. A2) of the second portion of the first data group is transmitted to the first target device TD1 through the first transmission interface TI 1. In more detail, no other data is included between the first data (e.g., A1) of the first portion and the second data (e.g., B1) of the first portion, and no other data is included between the second data (e.g., B1) of the first portion and the third data (e.g., C1) of the first portion. That is, in the embodiment of fig. 4, the data to be transmitted by different transmission interfaces are transmitted alternately and equally.

In an embodiment, when one of the transmission interfaces is transmitting data of one of the data groups, if the data transmission system 200 receives the second transmission information DI2 through the receiving interface RI, the transmission interface alternately transmits a portion of the data group corresponding to the first transmission information DI1 and the second transmission information DI2 until all the data groups are transmitted. In other words, when new transmission information is received, a new data transmission sequence is determined again according to the previous transmission information and the new received transmission information. Examples of this are shown in fig. 5 and 6.

In the embodiment of fig. 5, only the first transmission interface TI1 is originally used to transmit the first data group A1, A2, … …, and the second transmission information DI2 is received at the time point CT when the first data A2 is transmitted. The second transmission information DI2 represents that there is a second data group B1, B2, … … to be transmitted via the second transmission interface TI2. Therefore, after the first transmission interface TI1 transmits the first data A3 after the first data A2, the first data groups A1, A2 … … and the second data groups B1, B2 … … are transmitted in a new order. Specifically, after the first data A3 is transmitted, the first data in the first data groups A1, A2 … … and the second data in the second data groups B1, B2 … … are alternately transmitted in the order of A4, B2, A5, B3 … …. Note also that if the system is fast, the data may be alternately transmitted in the order of A4, B2, A5, and B3 … … immediately after the first data A2 is transmitted, which is not limited to waiting for the next first data A3 to be transmitted.

In another embodiment, the first received transmission information DI1 corresponds to M transmission interfaces of the transmission interfaces, and the second received transmission information corresponds to N transmission interfaces of the transmission interfaces. In this example, if the data transmission system 200 first makes the M transmission interfaces transmit the corresponding data group according to the first transmission information DI1, when the data transmission system receives the second transmission information DI2, the data corresponding to the M transmission interfaces first transmits a round of data through the M transmission interfaces, and then starts to transmit the data corresponding to the m+n transmission interfaces through the m+n transmission interfaces according to the first transmission information DI1 and the second transmission information DI2. The embodiment shown in fig. 5 corresponds to such an example.

Similarly, in the embodiment of fig. 6, the first transmission information DI1 received first corresponds to two transmission interfaces among the transmission interfaces. In detail, the first transmission information DI1 represents a first data group A1, A2 … … corresponding to the first transmission interface TI1 and a second data group B1, B2 … … corresponding to the second transmission interface TI2 to be transmitted. The second transmission information DI2 received later at the time point CT represents the third data group C1, C2 … … having the corresponding third transmission interface TI3 to be transmitted. In this embodiment, since the second transmission information DI2 is received when the second data B2 is transmitted, the first data A3 and the second data B3 corresponding to the first transmission interface TI1 and the second transmission interface TI2 are transmitted for one round, and then the data of the first data group A1, A2 … …, the second data group B1, B2 … … and the third data group C1, C2 … … are transmitted for one round. For example, in the embodiment of fig. 6, the data of three data groups are transmitted in the order of A4, B4, C1, A5, B5, C2.

As mentioned above, different transceiver interfaces can respectively follow different specifications, and electronic devices receiving data through different transceiver interfaces need to correspond to the transceiver interfaces. In an embodiment, the first transmission interface TI1 in fig. 2 complies with the USB specification, the second transmission interface TI2 complies with the SD expression specification, and the third transmission interface TI3 is a network interface card compliant with the NIC (network interface controller, NIC network interface controller) specification. The first target device TD1 is a USB device (e.g., a USB device in a mobile phone), the second target device TD2 is a Secure Digital (SD) memory card, and the third target device TD3 is an electronic device capable of using a network. The receiving interface RI also complies with the USB specification, and the source device SUD is a USB device (e.g., a USB device in a host computer).

In such an embodiment, if the actions in fig. 4 are to be performed, the source device SUD transmits USB SCSI (small computer system interface ) data (first data group A1, A2, A3 … …), SD SCSI data (second data group B1, B2, B3 … …) and TCPIP packets (third data group C1, C2, C3 … …) to the receiving interface RI, and notifies the receiving interface RI of which data to transmit with the USB packets. The source device SUD may also inform the data transfer system 200 to transfer USB SCSI data in sequence, SD SCSI data, and then TCPIP packets. After the data transmission system 200 confirms the sequence, the control packet (e.g., erdy) in the USB specification is initiated and then a portion of the USB SCSI data (e.g., A1) is transmitted, a portion of the SD SCSI data (e.g., B1) is transmitted, and then a portion of the TCPIP packet data (e.g., C1) is transmitted.

If the actions of fig. 5 are to be performed, the source device SUD will transmit USB SCSI (small computer system interface ) data to the receiving interface RI. The source device SUD informs the data transfer system 200 that the transfer sequence is USB SCSI data. After the data transmission system 200 confirms the sequence, a control packet (e.g., erdy) in the USB specification is initiated and then a portion (e.g., A1) of the USB SCSI data is transmitted. When the data transmission system 200 processes the first data A2, the source device SUD notifies the data transmission system 200 that there is SD SCSI data corresponding to the second transmission interface TI2 to be transmitted. The data transmission system 200 redefines the transmission sequence, and transmits the first data A3 in the sequence that is still the next round, and then transmits the data in the new sequence. When transmitting the SD SCSI data, the data transmission system 200 initiates the control packet in the USB specification to retransmit the SD SCSI data. The operation of the embodiment of fig. 6 is similar to that of fig. 5, except that the number of transmission interfaces for transmitting data in turn is changed to 3, so that the description thereof will not be repeated here.

According to the foregoing embodiments, a data transmission method is obtained, which is used in a data transmission system (e.g., the data transmission system 200 in fig. 2) including a receiving interface and a plurality of transmission interfaces. FIG. 7 shows an instruction conversion method according to an embodiment of the invention, which includes the following steps:

step 701

The receiving interface RI is used to receive a first transmission information DI1 transmitted by a source device SUD, where the first transmission information DI1 includes information of a plurality of data groups corresponding to at least two of the transmission interfaces.

Step 703

According to the first transmission information DI1, the transmission interface transmits a part of the corresponding data group to a corresponding target device in turn until all the data groups are transmitted.

The foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims should be construed to fall within the scope of the present invention.

Claims

1. A data transmission method for use in a data transmission system comprising a receiving interface and a plurality of transmitting interfaces, the data transmission method comprising:

the method includes the steps that (a) a first transmission information transmitted by a source device is received by the receiving interface, wherein the first transmission information comprises information of a plurality of data groups corresponding to at least two of the transmission interfaces; and

and (b) according to the first transmission information, enabling the transmission interfaces to alternately transmit a part of the data group corresponding to the transmission interfaces to a corresponding target device until all the data groups are transmitted.

2. The data transmission method as claimed in claim 1, wherein the transmission interfaces comprise a first transmission interface and a second transmission interface, and the step (b) comprises:

according to the first transmission information, transmitting first data of a first part of a first data group in the data groups to a first target device through the first transmission interface, transmitting second data of a first part of a second data group in the data groups to a second target device through the second transmission interface, and transmitting the first data of a second part of the first data group to the first target device through the first transmission interface.

3. The data transmission method of claim 2, wherein the data transmission system further comprises a third transmission interface, and the step (b) further comprises:

according to the first transmission information, the first data of the first part in the first data group is transmitted to the first target device through the first transmission interface, then the second data of the first part in the second data group is transmitted to the second target device through the second transmission interface, then the third data of the first part in a third data group in the data groups is transmitted to the third target device through the third transmission interface, and then the first data of the second part in the first data group is transmitted to the first target device through the first transmission interface.

4. The data transmission method of claim 1, further comprising:

when one of the data groups is transmitted by the transmission interface, if the second transmission information is received by the receiving interface, the transmission interface transmits a part of the data group corresponding to the transmission interface in turn according to the first transmission information and the second transmission information until all the data groups are transmitted.

5. The data transmission method according to claim 4, wherein the first transmission information corresponds to M of the transmission interfaces, the second transmission information corresponds to N of the transmission interfaces, the data transmission method further comprising:

when the data transmission system receives the second transmission information, the data corresponding to the M transmission interfaces are transmitted through the M transmission interfaces for one round, and then the data corresponding to the M+N transmission interfaces are transmitted through the M+N transmission interfaces according to the first transmission information and the second transmission information.

6. A data transmission system, comprising:

a receiving interface;

a plurality of transmission interfaces; and

a controller, wherein the controller controls the receiving interface to perform the following steps of the data transmission method:

(a) Receiving a first transmission message transmitted by a source device by using the receiving interface, wherein the first transmission message comprises information of a plurality of data groups corresponding to at least two of the transmission interfaces; and

(b) And according to the first transmission information, the transmission interfaces alternately transmit a part of the data group corresponding to the transmission interfaces to a corresponding target device until all the data groups are transmitted.

7. The data transmission system of claim 6, wherein the plurality of transmission interfaces comprises a first transmission interface and a second transmission interface, and step (b) comprises:

8. The data transmission system of claim 7, wherein the data transmission system further comprises a third transmission interface, the step (b) further comprising:

9. The data transmission system of claim 6, further comprising:

10. The data transmission system according to claim 9, wherein the first transmission information corresponds to M of the transmission interfaces, the second transmission information corresponds to N of the transmission interfaces, and the data transmission method further comprises: